diff options
| -rw-r--r-- | arch/i386/kernel/acpi/wakeup.S | 27 | ||||
| -rw-r--r-- | arch/x86_64/kernel/acpi/wakeup.S | 25 | ||||
| -rw-r--r-- | include/linux/acpi.h | 1 | ||||
| -rw-r--r-- | kernel/power/main.c | 23 |
4 files changed, 76 insertions, 0 deletions
diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S index a2295a3..b4e2ec3 100644 --- a/arch/i386/kernel/acpi/wakeup.S +++ b/arch/i386/kernel/acpi/wakeup.S @@ -13,6 +13,21 @@ # cs = 0x1234, eip = 0x05 # +#define BEEP \ + inb $97, %al; \ + outb %al, $0x80; \ + movb $3, %al; \ + outb %al, $97; \ + outb %al, $0x80; \ + movb $-74, %al; \ + outb %al, $67; \ + outb %al, $0x80; \ + movb $-119, %al; \ + outb %al, $66; \ + outb %al, $0x80; \ + movb $15, %al; \ + outb %al, $66; + ALIGN .align 4096 ENTRY(wakeup_start) @@ -31,6 +46,11 @@ wakeup_code: movw %cs, %ax movw %ax, %ds # Make ds:0 point to wakeup_start movw %ax, %ss + + testl $1, beep_flags - wakeup_code + jz 1f + BEEP +1: mov $(wakeup_stack - wakeup_code), %sp # Private stack is needed for ASUS board movw $0x0e00 + 'S', %fs:(0x12) @@ -88,6 +108,10 @@ wakeup_code: cmpl $0x12345678, %eax jne bogus_real_magic + testl $2, beep_flags - wakeup_code + jz 1f + BEEP +1: ljmpl $__KERNEL_CS,$wakeup_pmode_return real_save_gdt: .word 0 @@ -98,6 +122,7 @@ real_save_cr4: .long 0 real_magic: .long 0 video_mode: .long 0 video_flags: .long 0 +beep_flags: .long 0 real_efer_save_restore: .long 0 real_save_efer_edx: .long 0 real_save_efer_eax: .long 0 @@ -262,6 +287,8 @@ ENTRY(acpi_copy_wakeup_routine) movl %edx, video_mode - wakeup_start (%eax) movl acpi_video_flags, %edx movl %edx, video_flags - wakeup_start (%eax) + movl s2ram_beep, %edx + movl %edx, beep_flags - wakeup_start (%eax) movl $0x12345678, real_magic - wakeup_start (%eax) movl $0x12345678, saved_magic popl %ebx diff --git a/arch/x86_64/kernel/acpi/wakeup.S b/arch/x86_64/kernel/acpi/wakeup.S index 8550a6f..ed63d18 100644 --- a/arch/x86_64/kernel/acpi/wakeup.S +++ b/arch/x86_64/kernel/acpi/wakeup.S @@ -16,6 +16,21 @@ # cs = 0x1234, eip = 0x05 # +#define BEEP \ + inb $97, %al; \ + outb %al, $0x80; \ + movb $3, %al; \ + outb %al, $97; \ + outb %al, $0x80; \ + movb $-74, %al; \ + outb %al, $67; \ + outb %al, $0x80; \ + movb $-119, %al; \ + outb %al, $66; \ + outb %al, $0x80; \ + movb $15, %al; \ + outb %al, $66; + ALIGN .align 16 @@ -33,6 +48,13 @@ wakeup_code: movw %cs, %ax movw %ax, %ds # Make ds:0 point to wakeup_start movw %ax, %ss + + # Data segment must be set up before we can see whether to beep. + testl $1, beep_flags - wakeup_code + jz 1f + BEEP +1: + # Private stack is needed for ASUS board mov $(wakeup_stack - wakeup_code), %sp @@ -229,6 +251,7 @@ gdt_48a: .long gdta - wakeup_code # gdt base (relocated in later) real_magic: .quad 0 +beep_flags: .quad 0 video_mode: .quad 0 video_flags: .quad 0 @@ -344,6 +367,8 @@ ENTRY(acpi_copy_wakeup_routine) pushq %rax pushq %rdx + movl s2ram_beep, %edx + movl %edx, beep_flags - wakeup_start (,%rdi) movl saved_video_mode, %edx movl %edx, video_mode - wakeup_start (,%rdi) movl acpi_video_flags, %edx diff --git a/include/linux/acpi.h b/include/linux/acpi.h index fccd8b5..c0ccdd7 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -123,6 +123,7 @@ extern int pci_mmcfg_config_num; extern int sbf_port; extern unsigned long acpi_video_flags; +extern unsigned long s2ram_beep; #else /* !CONFIG_ACPI */ diff --git a/kernel/power/main.c b/kernel/power/main.c index 32147b5..c74a564 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -332,6 +332,27 @@ static ssize_t state_store(struct kset *kset, const char *buf, size_t n) power_attr(state); +unsigned long s2ram_beep = 0; + +static ssize_t s2ram_beep_show(struct kset *kset, char *buf) +{ + return sprintf(buf, "%d\n", s2ram_beep); +} + +static ssize_t +s2ram_beep_store(struct kset *kset, const char *buf, size_t n) +{ + int val; + + if (sscanf(buf, "%d", &val) > 0) { + s2ram_beep = val; + return n; + } + return -EINVAL; +} + +power_attr(s2ram_beep); + #ifdef CONFIG_PM_TRACE int pm_trace_enabled; @@ -357,11 +378,13 @@ power_attr(pm_trace); static struct attribute * g[] = { &state_attr.attr, &pm_trace_attr.attr, + &s2ram_beep_attr.attr, NULL, }; #else static struct attribute * g[] = { &state_attr.attr, + &s2ram_beep_attr.attr, NULL, }; #endif /* CONFIG_PM_TRACE */ |
